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公开(公告)号：US10290432B1
公开(公告)日：2019-05-14
申请号：US15894990
申请日：2018-02-13
Inventor： Qian Li , Chao Cai , Qingdan Yang , Jia Li , Paul Kwok Keung Ho
IPC: H01L51/50 , H01G9/20 , H01L51/42 , H01L51/00 , C09D11/102 , C09D7/40 , C09D11/037 , C09D11/52 , H01G9/00 , C08K3/04
Abstract: To fabricate a perovskite solar cell (PSC), a printable carbon electrode is formed on an uppermost layer, either a perovskite layer or an interface layer thereon, of a partially-completed PSC. A carbon ink is first prepared by dispersing carbon materials in a mixture of a polymer binder and a solvent. Then the carbon ink is screen-printed on the uppermost layer to form a wet film thereon. The wet film is baked with a baking temperature not exceeding 100° C. to evaporate the solvent to form the carbon electrode. Advantageously, the wet film is pressed with a pressure during baking such that the carbon electrode becomes denser and yields a lower sheet resistance when compared to one formed without being pressed. Preferably the pressure is at least 16,000 Pa. Experimental results show that the percentage reduction of sheet resistance can reach 40%.
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公开(公告)号：US20180248178A1
公开(公告)日：2018-08-30
申请号：US15441475
申请日：2017-02-24
Inventor： Chung Pui Chan , Yeming Xu , Chao Cai , Kowk Keung Paul Ho
IPC: H01M4/36 , H01M10/0525 , H01M4/583 , H01M4/04 , H01M4/485
CPC classification number: H01M4/366 , H01M4/04 , H01M4/485 , H01M4/587 , H01M10/0525 , H01M2004/027
Abstract: Disclosed are composite anodes for a lithium ion battery containing carbon material core particles and a coating layer of LTO particles over the carbon material core particles, the coating layer of LTO particles at least partially covering the carbon material core particles. Also disclosed are anodes for a lithium ion battery containing activating treated surface modified graphite particles, wherein at least one of an inorganic acid or an oxidizing agent is used to treat and modify the surface of the graphite particles.
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